I know that the basic ninjas have been made available for SDE, but I was wondering whether anybody out there has done any work to make more of these great figures compatible? Has Sodapop mentioned any plans to make these compatible?

I myself have done work to make Onibaba a Dungeon boss, which can be found here.

I would love to see more of the Ronin as either Mini-Bosses, Dungeon Bosses or heroes.